Still valid in 2025 for all ASUS Access Points. Phones connected to the AP drop its IPv6 address after a few hours. If connected to the main router - no problems.
Swedbank is blocking VPN. I guess you also have problems with https://accounts.kivra.com/
Try split tunneling!
Read https://www.sweclockers.com/forum/trad/1703655-mullvad-vpn-kommer-inte-in-pa-kivra-och-swedbank (in Swedish, sorry about that).